How can I setup a new custom connector from Power Automate that should use a Service principal

Question

I have tried to create a custom connector within Power Automate where I need to replicate the standard connector "Create a pipeline run" but I need it to use a service principal account as people not having access to data factory should still be able to use a Power App that I have created.

I have created everything within Azure, like App, secret, redirect url etc.. and I have also setup everything in Postman and I'm able to get a token and my pipeline is started with 5 input parameters that is to be used within my pipeline.

I would really like to know if it even possible to get the authentication to work with using a custom connector?

Below is my details:
Under the App -> Authentication I have added the Redirect_URI that I received when I created the customer connector.

Under the App -> API Permissions I have added "Azure Service Management" -> user_impersonation...however the Status is not set to be "Granted", does it need to be?!

I started to create my new connector from scratch and filled in all fields: Authentication Type => OAuth 2.0

Identity Provider => Azure Active Directory

Enable Service principal support => TRUE

Client Id => from my App

Client Secret => from the secret created under the App

Authorization URL => https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/authorize

Tenant Id =our tenant id

Resource URL => https://management.azure.com/

Enable on-behalf-of-login => ?? It's by default set to false, I don't know if this needs to be set to true

Scope => https://management.azure.com/.default

Redirect URL => set by the system after connector is created, This URL is added under the App's Authentication web redirects.

What I find strange about this is that there is no URL for the token? Is this not needed?

Error after all if this is that I'm not getting authenticated:
Failed to acquire access token for service using client credentials flow: IdentityProvider=aad. Correlation Id=907d2481-19c5-438c-a161-d44f90afb816, UTC TimeStamp=11/13/2024 6:38:16 AM, Error: Failed to exchange client credentials for token. Response code=NotFound, Details:

I have also tested to export the Postman collection and created a new connector based on this and entered all other information, still same issue with authentication

Any guidance to get this to work is highly appreciated!

Thank you.

Answer 1

Hi Håkan Champ Bondesson,

Thank you for reaching out to us on the Microsoft Q&A forum. 

This topic is currently not supported in the Q&A forums. 

We recommend initiating a new discussion through the https://community.powerplatform.com/forums/thread/?groupid=46ce02a3-e1a7-4176-81fc-d93a4001d287&page=1

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Answer 2

Hi Håkan Champ Bondesson,

Thank you for reaching out to us on the Microsoft Q&A forum. 

This topic is currently not supported in the Q&A forums. 

We recommend initiating a new discussion through the https://community.powerplatform.com/forums/thread/?groupid=46ce02a3-e1a7-4176-81fc-d93a4001d287&page=1

Moderators are readily available there to assist you and provide guidance. 

Please don't forget to Accept/Upvote helpful answer and close this thread.